Sorry, vmirage, but it seems I never stored this in my own charts so I don't have the code myself anymore. :/
I don't remember how I accomplished this now, but I would hope this kind of this is simple in Pine script now; this created when Pine was only a few weeks old.

Unfortunately it is not easy to do it as there is no way to convert series into a single float value to use in hline. And I can't find any way to do it. It seems like you are the only person who managed convert them. Do you have any other code that does this at all? Isn't the pine script in your library unless you deliberately delete them?

OK, it's no longer 06:00 on a work day so I had time to re-familiarise myself with this site, which I haven't frequented in 2-years.
I found this in one of my saved charts, which will hopefully give you a nudge in the right direction:

So it's because the offset was so high it had no other choice but to plot just that one value as a horizontal line (rather than a series)...
If you want to use this specific value in a calculation however (rather than the whole series of values), you're up a creek at the moment (until they add this functionality)...